<html>
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8">
        <META http-equiv="Content-Style-Type" content="text/css">
    <script type="text/javascript" language="javascript" src="jquery-1.4.2.min.js"></script>
    <script type="text/javascript">
         $(document).ready(function(){
           var id=1;
          $("#s").click(function(){
              var  str=String.fromCharCode(64+id);
              var input="["+str+"]、<input type='text' id='"+id+"' ><br>";
              id++;
              var k=$("#inputDiv").html();
              k+=input;
             $("#inputDiv").html(k);
          })
         })   
        </script>
    </head>
    <body>
        </div>
        <div>
        <input type="button" > </div>
    </body>
</html>

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